CN207086712U - Efficient three ply stress mold - Google Patents
Efficient three ply stress mold Download PDFInfo
- Publication number
- CN207086712U CN207086712U CN201721021365.8U CN201721021365U CN207086712U CN 207086712 U CN207086712 U CN 207086712U CN 201721021365 U CN201721021365 U CN 201721021365U CN 207086712 U CN207086712 U CN 207086712U
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- die
- ply stress
- stress set
- middle ply
- set portion
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Abstract
A kind of efficient three ply stress mold is the utility model is related to, for fastening parts of automobiles cold forming, is made up of ply stress set portion in a die portion, one and a die coat portion；The die portion and middle ply stress set portion and die coat portion are sequentially interference fitted connection；The die coat portion includes a central through hole, and the one end in the die coat portion has a containing groove, and the containing groove and the central through hole are concentric；The middle ply stress set portion is a ducted body, and the middle ply stress set portion insertion connects the containing groove；The die portion is a ducted body, and the die portion insertion connects the middle ply stress set portion.The die life of the application is more permanent, and the replacing frequency is less, and product quality is more high-quality；Directly more renew mould, reduce and shut down mould replacing time, save production cost.
Description
Technical field
It the utility model is related to a kind of mould, and in particular to it is high-precision, efficient to one kind, three for fastener cold forming
Ply stress mold.
Background technology
As " made in China " constantly emerges, there occurs the change of " revolutionary character " for manufacturing industry.Made in China from scratch, from
By import to imitating to domesticizing, from low side to middle and high end, from by discrimination to attention ..., none is not manufacture big country projection
Performance.In response to development in science and technology, technological progress, automobile product makes rapid progress, and also fastener products are proposed with higher requirement,
And auto parts and components are the key areas that Domestic Automotive Industry participates in globalization.According to statistics, similar 70% it is in vehicle failure
As caused by electric system, the reason for causing electric system failure, is a lot, but some of failures, then is due to that fastener is bad
Caused by, these failures gently then influence the function in terms of automobile, heavy then even generation car crash tragedy, therefore really
The reliability for protecting fastening parts of automobiles just seems extremely important.
Domestic automobile consumption market constantly expands and compatriots are to the increasingly diversification with car theory, it is necessary to abandons original solidification
Outmoded thought, open up brand-new thinking, be that client and consumer create safer, more economical service.It is well known that automobile
Fastener belongs to safety member, and the cold forming die as production fastening parts of automobiles is particularly important, the mould knot of prior art
Structure, as shown in figure 1, having the disadvantage that：
1st, using empiecement+core rod+cushion block+die sleeve+screw-threaded coupling nested structure, each portion's size is entered again after the completion of first manufacturing
Luggage is matched somebody with somebody, and assemble is influenceed by factors such as each portion's form and position tolerance, foozles, and mould entirety value of interference fit deviation is big, empiecement to
The restraining force of outer expansion is not known.When mould is in radial force, empiecement does not have enough restraining forces, easily causes empiecement and opens
Split, mould premature failure；
2nd, in manufacturing process, using empiecement+core rod+cushion block+die sleeve+screw-threaded coupling nested structure, it is more to there is material category：
(empiecement：Alloy+high-carbon steel；Core rod：Alloy+high-carbon steel；Cushion block：High-carbon steel；Mould set：High-carbon steel；Screw fastening tight set：High-carbon
Steel), the problems such as manufacturing process accumulated error is big, the manufacturing process cycle is long, overall precision difference；
3rd, empiecement need to be changed during use, during continuous production 20K-50K parts, it is complicated to change empiecement process, need to be by specialty
Personnel are operated, and replacing construction length, product size uniformity is poor, (remove screw fastening tight set --- removing cushion block --- to remove
Core rod --- removes empiecement and --- assembles new empiecement --- assembling core rod --- assembling cushion block --- assembling screw fastening tight set ---
Confirm internal diameter size).
Therefore, the mould structure of prior art fastener cold forming, the place also lifted.
Utility model content
The purpose of this utility model is to provide a kind of high accuracy, efficient fastener cold forming die, and structure is reliable, product
Uniform quality, to solve existing technical problem.
To achieve the above object, the utility model employs following technical scheme：
A kind of efficient three ply stress mold, for fastening parts of automobiles cold forming, by ply stress set portion in a die portion, one
Formed with a die coat portion；The die portion and middle ply stress set portion and die coat portion are sequentially interference fitted connection, described
The magnitude of interference between die portion and middle ply stress set portion coordinates the mistake being less than between the middle ply stress set portion and die coat portion
The amount of being full of coordinates；The die coat portion includes a central through hole, and the one end in the die coat portion has a containing groove, described
Containing groove and the central through hole are concentric, and the other end in the die coat portion is a plane, and centre leads to for the center
Hole, the side in the die coat portion include lock and pay the angle of pinching；The middle ply stress set portion is a ducted body, the middle ply stress
The insertion of set portion connects the containing groove；The die portion is a ducted body, and the die portion insertion connects the middle ply stress
Set portion.
Efficient three ply stress mold described in the application preferred embodiment, the containing groove is circular groove.
Efficient three ply stress mold described in the application preferred embodiment, the middle ply stress set portion are a circular hollow
Body.
The design concept of the application is, die quality it is good, badly directly influence product quality, economic lot size and vehicle matter
Amount." primary screw, DZH " in line with constantly bringing forth new ideas, is updated, debugged, verifying, be real in cold forming die manufacturing process
With designing a kind of cold forming die of three ply stress cover die lamps structure, greatly improve die life, product size is consistent
Property, man-hour reduction expense is saved, improves market competitiveness of enterprises.
Technical scheme as a result of more than so that the utility model has the following advantages effect：
Firstth, die manufacture cycle of the application is shorter, the accuracy of manufacture is more controllable；
Secondth, the die life of the application is more permanent, and the replacing frequency is less, and product quality is more high-quality；
3rd, the mould of the application can continuous production 150K-200K parts, directly more renews mould after mould is weathering, subtracts
Mould replacing time is shut down less, saves production cost.
Certainly, any one specific embodiment of teachings herein is implemented, the skill might not simultaneously with all of the above
Art effect.
Brief description of the drawings
Fig. 1 is prior art mold schematic diagram；
Fig. 2 is the mould schematic diagram of the application.
Embodiment
For ease of understanding, preferred embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing.
It refer to Fig. 2, a kind of efficient three ply stress mold, for fastening parts of automobiles cold forming, by die portion 10, middle level
Stress set portion 20 and die coat portion 30 form；The die portion 10 and middle ply stress set portion 20 and die coat portion 30 sequentially mistake
It is full of mating connection；The size degree of interference fit is：The die portion 10 and middle ply stress set portion 20 to coordinate compared with slight interference amount,
The middle ply stress set portion 20 is coordinated with die coat portion 30 with the larger magnitude of interference.
The die coat portion 30 includes a central through hole, and the one end in the die coat portion 30 has a containing groove,
The containing groove and the central through hole are concentric, and the other end in the die coat portion is a plane, during centre is described
Heart through hole, the side in the die coat portion include lock and pay the angle of pinching；The middle ply stress set portion 20 is a ducted body, in described
The insertion connection of ply stress set portion 20 containing groove, the inner edge shape of the containing groove and the middle ply stress set portion 20
Outer rim shape is consistent, it is preferred that the containing groove is circular groove；And the middle ply stress set portion 20 is a circular hollow
Body.The die portion 10 is a ducted body, and the insertion of die portion 10 connects the middle ply stress set portion 20.
After the completion of each portion of the application is first assembling, then to each portion's dimensioned, die portion 10 and die coat portion 30
Value of interference fit increases, the restraining force enhancing for expanding outwardly die portion 10.When mould is larger in radial force, middle ply stress
Set portion 20 can be very good to constrain the radial outward dilations of die portion 10, reduce because the radial force of die portion 10 exceeds the footpath of die portion 10
The cracking phenomena of die portion 10 occurs to restraining force.
The structure of herein described efficient three ply stress mold has mould structure change, value of interference fit change and assembling
Order changes, and includes in terms of structure change：
1st, from prior art：Empiecement+core rod+cushion block+die sleeve+screw-threaded coupling nested structure,
It is changed to：Die+middle ply stress set+die coat structure；
2nd, from prior art：Empiecement lagging material high-carbon steel,
It is changed to：Middle ply stress cover material high-speed steel；
3rd, from prior art：High-carbon steel hardness HRC43-46,
It is changed to middle ply stress set HRC58-60；
4th, from prior art：Cushion block+die sleeve+screw fastening tight set (split),
It is changed to：Die coat (entirety).
In addition, the application uses die portion 10, middle ply stress set portion 20 and the structure of die coat portion 30, it is relative using material
Simply：For example, die portion 10 uses alloy；Middle ply stress set portion 20 uses high-speed steel；Die coat portion 30 uses high-carbon steel, can
To reach, manufacturing process accumulated error is small, the manufacturing process cycle is short, overall precision is high effect.
Technical scheme as a result of more than so that the utility model has the following advantages effect：
Firstth, die manufacture cycle of the application is shorter, the accuracy of manufacture is more controllable；
Secondth, the die life of the application is more permanent, and the replacing frequency is less, and product quality is more high-quality；
3rd, the mould of the application can continuous production 150K-200K parts, directly more renews mould after mould is weathering, subtracts
Mould replacing time is shut down less, saves production cost.
Certainly, implement any one specific embodiment of the utility model content, there might not be all of the above simultaneously
Technique effect.
Disclosed above is only preferred embodiment of the present utility model, but is not used for limiting itself, any to be familiar with
Those skilled in the art is in the case of without prejudice to the utility model spiritual connotation, and the equivalent change done and change all should
Fall in the scope of protection of the utility model.
Claims (3)
- A kind of 1. efficient three ply stress mold, for fastening parts of automobiles cold forming, it is characterised in that by a die portion, one Ply stress set portion and die coat portion composition；The die portion and middle ply stress set portion and die coat portion are sequentially interference fitted Connection, the magnitude of interference between the die portion and middle ply stress set portion, which coordinates, is less than the middle ply stress set portion and die coat portion Between the magnitude of interference coordinate；The die coat portion includes a central through hole, and the one end in the die coat portion has a containing groove, described accommodating Groove and the central through hole are concentric, and the other end in the die coat portion is a plane, and centre is the central through hole, institute Stating the side in die coat portion includes the lock pair angle of pinching；The middle ply stress set portion is a ducted body, and the middle ply stress set portion insertion connects the containing groove；The die portion is a ducted body, and the die portion insertion connects the middle ply stress set portion.
- 2. efficient three ply stress mold as claimed in claim 1, it is characterised in that the containing groove is circular groove.
- 3. efficient three ply stress mold as claimed in claim 2, it is characterised in that the middle ply stress set portion is one circular Ducted body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721021365.8U CN207086712U (en) | 2017-08-16 | 2017-08-16 | Efficient three ply stress mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721021365.8U CN207086712U (en) | 2017-08-16 | 2017-08-16 | Efficient three ply stress mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207086712U true CN207086712U (en) | 2018-03-13 |
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ID=61540937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721021365.8U Active CN207086712U (en) | 2017-08-16 | 2017-08-16 | Efficient three ply stress mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207086712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321855A (en) * | 2017-08-16 | 2017-11-07 | 浙江长华汽车零部件有限公司 | Efficient three ply stress mold |
-
2017
- 2017-08-16 CN CN201721021365.8U patent/CN207086712U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321855A (en) * | 2017-08-16 | 2017-11-07 | 浙江长华汽车零部件有限公司 | Efficient three ply stress mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315324 Zhouxiang Town Industrial Park, Cixi City, Ningbo, Zhejiang Co-patentee after: NINGBO CHANGHUA CHANGSHENG AUTO PARTS CO.,LTD. Patentee after: ZHEJIANG CHANGHUA AUTO PARTS Co.,Ltd. Address before: 315301 Zhouxiang Town Industrial Park, Cixi City, Ningbo, Zhejiang Co-patentee before: NINGBO CHANGHUA CHANGSHENG AUTO PARTS CO.,LTD. Patentee before: ZHEJIANG CHANGHUA AUTO PARTS Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315324 Zhouxiang Town Industrial Park, Cixi City, Ningbo, Zhejiang Patentee after: Changhua Holding Group Co.,Ltd. Patentee after: NINGBO CHANGHUA CHANGSHENG AUTO PARTS CO.,LTD. Address before: 315324 Zhouxiang Town Industrial Park, Cixi City, Ningbo, Zhejiang Patentee before: ZHEJIANG CHANGHUA AUTO PARTS Co.,Ltd. Patentee before: NINGBO CHANGHUA CHANGSHENG AUTO PARTS CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |